It includes the engine improvements and aesthetic modifications ... A 709-horsepower BMW M4 sounds like a blast, especially this one with a six-speed manual. The G4M's aggressive styling might ...

What if we told you Steve Dinan's latest BMW is (almost) a Porsche GT3 RS (minus the aero) for half the cash? Yeah, that’s right, real drivers will want one. CarBahn calls its G82 M4 mods its ...